MS6257GTR 데이터 시트보기 (PDF) - MOSA ELECTRONICS

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MS6257GTR

Gain and Attenuation Volume Controller IC One Set of Stereo Input, Low voltage Gain and Attenuation 15~-79dB

MOSA ELECTRONICS 

MOSA

MS6257

GAIN AND ATTENUATION VOLUME CONTROLLER IC

BUS INTERFACE

Data are transmitted to and from the MCU to the MS6257 via the SDA and SCL. The SDA and SCL make up the

BUS interface. It should be noted that pull-up resistors must be connected to the positive supply voltage.

VDD

SDA (Serial Data Line)

Rp

Rp Pull up resistors

SCL (Serial Clock Line)

MCU

MS6257

Interface protocol

The format consists of the following

‧A START condition

‧A chip address byte including the MS6257 address. (7bits)

‧The 8th bit of the byte must be “0”.(write=0, read=1)

‧MS6257 must always acknowledge the end of each transmitted byte.

‧A data sequence (N-bytes + Acknowledge)

‧A STOP condition

SDA

SCL

S

START

CONDITION

1-7

ADDRESS

8

R / W--

9

ACK

1-7

8

9

DATA

ACK

Protocol Address

10001000

7 bits address

W

MS6257 address

1-7

8

DATA

9

ACK

P

STOP

CONDITION

REV 1

7

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